<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <form action="http://localhost:7777/Login" method="POST">
        <label>username</label><input type="text" name="username"><br>
        <label>password</label><input type="password" name="password"><br>
        <input type="submit" value="提交">
    </form>
  

</body>

</html>